Mode switching oscillation of an external-cavity laser diode and its application to length measurement
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説明
An external cavity laser diode system is proposed for a double mode light source, in which the oscillation mode can also alternately switch between TE- and TM-modes. An external cavity laser diode system is implemented to oscillate periodically switching between a TE- and a TM-mode in the identical frequency. The system is applied to length measurement. Accuracy of the measurement is quite excellent with the relative error of +/- 0.0100%, and proves that the present method is one of highly accurate practical non- contact length measuring means. In the present paper, we present both its principle and results of the experiments.
収録刊行物
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- SPIE Proceedings
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SPIE Proceedings 3491 891-, 1998-12-04
SPIE